Markwell s



(No Model.)

M. S. PURDY 8v H. ALBBR.

ALCOHOL DISINPECTING LAMP.

No. 399,078. Patented Mar.; 5, 1889.`

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MARKWELI. PURDY AND HERMAN N ALBER, Oll CORNING, XElV YORK; SAID PllRDY ASSIGNOR TO SAID ALBER.

-ALCOHOL DlSlNFECTlNG-LANIP.

SPECIFICATION forming part of Letters Patent No. 399,078, dated March 5, 1889.

Applieaton'illetl May 6, 1887. Serial No. 237,373. (No model.)

.To all who/1t 'it lfm/lj conce/w: burner and the neck ot' the bowl and extiir Bc it known thatwe, MARKWELL S. PURDY, l guishes the lame, and the extinguisher is a citizen of the United States, and HERMANN then immediately removed from the lamp, ALBER, a citizen of Germany, residing at Corand the vapor from the alcolici, risingr upward 5 ning, in the` county ot' Steuben and State of in the cap G, comes in contact therewith and 5 5 New York, have invented a new and useful becomes decomposed by contact with the Improvement in Alcohol Disinfecting-Lamps, heated platinum, and the heat generated by of which the following' is a specifica-tion. the decomposition ofthe alcoholic vapor keeps Our invention relates to an improvement in the platinum cap in an incandescent condi- 1o alcohol disintecting-lamps; and it consists in i tion. 6o

the peculiarconstruction and combination of So far as we are aware, the devices heretodevices, that will be more fullyset forth herel fore provided have employed a spiral coil or iuafter, and particularly pointed ont in the l cylinder of platinum surrounding the wick. claims. This device was easily bent or broken, be- F In the drawings, Figure l is a vertical secl came only partially incandescent, and ceased 63 tional view of a lamp embodying our improvej to glow whenever the wick touched it. In our ments. Fig. 2 is an elevation ot the burner. l device these dilliculties are overcome, as the A represents a lamp-bowl, which is proshape is such that the ascending,` vapors must vided on its upper sido with a collarorneck, strike the cap, while the upper end of the 2o B. This neck is formed integral with the wick, being,` below or just on a level with the 7o bowl by a reduced extension thereof. C replower end of the cap, cannot touch the same. resents a circular concave-convex disk which live desire in no sense to increase the brilrests upon the upper side ot the neck of the liano)v of a dame. Our purpose is to keep a lamp and closes the same, and downward cap of thin platinum incandescent (for the through the central opening in the said disk purpose specified) without using a flame, ex- 7 5 extends a wick-tube, D, which is secured to cept as explained, to render the platinum inthe disk at a point about one-third its length candescent. Then the flame is extinguished. from its upper end. E represents a series of lVe are aware that spongy platinum has vert-ical supports, which are made of springbeen used to light streams of hydrogen or of 3o wire, are secured to disk C, and project uphydrocarbon gases, and in various flames 8o ward above the upper end of the wick-tube a platinum has been introduced to acquire suitable distance. The said wire supports greater brilliancy. All of these we disclaim. are provided with hooks F at their upper As our lamp is more particularly designed for ends, adapted to engage the lower side of a sick-rooms, the platinum would most probably truncated conical heater or cap, G, which is be shaded, as the disinfecting and purifying 85 provided with perforations in the sides and is qualities are those alone wanted. made ot platinum. Having` thus described our invention, we

H represents an extinguisher, that is adaptclaimed to be inserted over the neck of the lamp, l. The herein-described alcohol disinfect 4o so as to inclose the burner and entirely cut off ing-lamp, comprising` the bowl A, having its 9o the supply ot air therefrom. central portion extended up and reduced to The operation of our invention is as folform the ineg'ral neck B, the disk C, resting lows: The lamp-bowl is nearly Vfilled with pure on the upper edge of the neck, the wick-tube alcohol, and a wick is inserted in the wick- D, extending down through an openingoi:` the tube and extended down into the alcohol and disk and secured at an intermediate point of 9 5 saturated with t-he same. The extinguisher its length thereto, and the vertical supports is removed and the wick is lighted. The E,secured to the disk C and extended upward llame from the wick soon heats the platinum beyond the wick-tube, so as to hold the cap cap until the same becomes incandescent. out of contact with the wick, and having 5o The extinguisher is then placed over the hooks at their upper ends, the perforated roo y is.

platinum Cap G, supported detaehably by the hooks above the wick-tube, and the extinguisher H, as set forth.

2. The bowl A, the Cap G, of perforated sheet metal or platinum, and the extinguisher H, to extinguish the flame, whereby when the extinguisher is removed after the flame is extinguished the vapor from the alcohol, rising up, comes in Contact with the cap and becomes decomposed, and the heat generated by the decomposition of the alcohol-vapor keeps the platinum cap in an incandescent condition, as set forth.

3. The bowl A, disk C, and wick-tube D, Combined with the supports E, extending up 

